我国的浓雾、冰雪等恶劣天气的高峰期多集中于“国庆”、“春运”这些交通量的峰值时段,频频关闭高速公路,单一采取“只堵不疏”中断交通式的封闭管制很可能引起交通瘫痪,造成物流中断,影响驾乘人员及沿线群众的生产生活。因此,如何处理恶劣天气条件下高速公路交通安全与道路畅通的关系, The peak periods of heavy fog, snow and other bad weather in our country are mostly concentrated in the peak periods of traffic such as “National Day” and “Spring Festival”, frequently shutting down the expressways and adopting " Closed control is likely to cause traffic paralysis, resulting in interruption of logistics, affecting occupants and people along the production and life. Therefore, how to deal with the highway traffic safety and the smooth flow of the road under adverse weather conditions,